Home / 806,985.24-1,211,396.40-408,076.44

Finding the Fourth Proportional to 806,985.24, 1,211,396.40 and 408,076.44

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Solution

The fourth proportional to 806,985.24, 1,211,396.40 and 408,076.44 is: 612,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,985.24 : 1,211,396.40 = 408,076.44 : x
  2. Step 2: Convert to fraction form
    806,985.24/1,211,396.40 = 408,076.44/x
  3. Step 3: Cross multiply
    806,985.24x = 1,211,396.40 × 408,076.44
  4. Step 4: Simplify right side
    806,985.24x = 494,342,330,340.82
  5. Step 5: Solve for x
    x = 494,342,330,340.82/806,985.24
  6. Step 6: Final answer
    x = 612,579.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.